2007A&A...470..571B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST10:43:25

2007A&A...470..571B - Astronomy and Astrophysics, volume 470, 571-583 (2007/8-1)

Molecular gas in nearby low-luminosity QSO host galaxies.

BERTRAM T., ECKART A., FISCHER S., ZUTHER J., STRAUBMEIER C., WISOTZKI L. and KRIPS M.

Abstract (from CDS):

This paper addresses the global molecular gas properties of a representative sample of galaxies hosting low-luminosity quasistellar objects. An abundant supply of gas is necessary to fuel both the active galactic nucleus and any circum-nuclear starburst activity of QSOs. The connection between ultraluminous infrared galaxies and the host properties of QSOs is still subject to a controversial debate. Nearby low-luminosity QSOs are ideally suited to study the properties of their host galaxies because of their higher frequency of occurrence compared to high-luminosity QSOs in the same comoving volume and because of their small cosmological distance. We selected a sample of nearby low-luminosity QSO host galaxies that is free of infrared excess biases. All objects are drawn from the Hamburg-ESO survey for bright UV-excess QSOs, have δ>-30° and redshifts that do not exceed z=0.06. The IRAM 30m telescope was used to measure the 12CO(1-0) and 12CO(2-1) transition in parallel. 27 out of 39 galaxies in the sample have been detected. The molecular gas masses of the detected sources range from 0.4x109M to 9.7x109M. The upper limits of the non-detected sources correspond to molecular gas masses between 0.3x109M and 1.2x109M. We can confirm that the majority of galaxies hosting low-luminosity QSOs are rich in molecular gas. The properties of galaxies hosting brighter type I AGN and circumnuclear starformation regions differ from the properties of galaxies with fainter central regions. The overall supply of molecular gas and the spread of the line width distribution is larger. When comparing the far-infrared with the CO luminosities, the distribution can be separated into two different power-laws: one describing the lower activity Seyfert I population and the second describing the luminous QSO population. The separation in the LFIR/L'CO behavior may be explainable with differing degrees of compactness of the emission regions. We provide a simple model to describe the two power-laws. The sample studied in this paper is located in a transition region between the two populations.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: ISM - quasars: general - radio lines: ISM - galaxies: Seyfert

CDS comments: Table 1: HE 2233-0124 is a misprint for HE 2233+0124 (correct in table2)

Simbad objects: 44

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Number of rows : 44

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 2MASX J00233937-1753536 Sy1 00 23 39.3771636695 -17 53 54.105081928   16.83 15.4 15.71   ~ 10 0
2 2MASX J00235534-1802508 Sy1 00 23 55.3609722340 -18 02 50.533394650   16.84 14.80 16.00   ~ 11 0
3 2MASX J00423686-1049222 Sy1 00 42 36.8636488632 -10 49 22.096052937   17.03 16.58 13.7   ~ 33 0
4 ESO 540-27 EmG 00 47 41.3246215056 -21 29 27.614728291   14.52   13.51   ~ 25 0
5 Mrk 1502 Sy1 00 53 34.9326560879 +12 41 35.927159668   14.41 14.03     ~ 1034 1
6 HE 0108-4743 Sy1 01 11 09.7 -47 27 35   15.10 14.53 13.88   ~ 22 0
7 2E 343 Sy1 01 17 03.588 +00 00 27.41   17.29 16.79     ~ 38 0
8 Z 385-82 Sy1 01 21 59.8142301684 -01 02 24.373963458   17.04 16.78 11.0   ~ 135 0
9 2MASX J01530150-0329229 G 01 53 01.504 -03 29 22.90           ~ 3 0
10 Mrk 1018 Sy1 02 06 15.9897977200 -00 17 29.219372130   15.90 15.50 10.3   ~ 240 0
11 NGC 863 Sy1 02 14 33.5610949475 -00 46 00.180128181   14.48 13.81 17.9   ~ 571 0
12 2dFGRS TGS310Z041 Sy1 02 26 25.7189223456 -28 20 58.848439821   16.096 16.76 15.140   ~ 25 0
13 Mrk 1044 Sy1 02 30 05.5224714146 -08 59 53.208069457   14.74 14.29 13.981 13.585 ~ 217 0
14 NGC 985 Sy1 02 34 37.882 -08 47 17.02   14.64 14.28 12.9   ~ 345 0
15 2MASX J02560264-1629159 Sy1 02 56 02.6505188834 -16 29 15.521322784   13.5       ~ 37 0
16 IRAS 03450+0055 Sy1 03 47 40.1887172045 +01 05 14.046919358   15.09 14.64     ~ 73 0
17 2MASX J03540948+0249307 Sy1 03 54 09.4654189734 +02 49 30.671752420   17.30 16.2     ~ 55 0
18 2E 955 Sy1 04 14 52.6567669284 -07 55 39.688632154   15.66 14.91     ~ 75 0
19 2MASX J04313706-0241239 Sy1 04 31 37.0710449265 -02 41 23.943167517   15.0 16.2 14.2   ~ 10 0
20 Mrk 618 Sy1 04 36 22.2984932129 -10 22 33.987352636   15.08 14.51 10.7   ~ 222 0
21 2MASX J08555426+0051110 Sy1 08 55 54.2769435858 +00 51 10.971786520   18.07 17.49     ~ 22 0
22 2MASX J08561784-0138073 Sy1 08 56 17.8324568449 -01 38 07.369409161   14.4   11.7   ~ 19 0
23 Mrk 707 Sy1 09 37 01.0469474034 +01 05 43.750303841   16.86 16.64     ~ 121 0
24 Mrk 1239 Sy1 09 52 19.168 -01 36 44.10   14.99 14.39 11.2   ~ 287 0
25 QSO B1011-040 Sy1 10 14 20.6737918236 -04 18 40.372348306   15.49 15.5     ~ 112 0
26 Mrk 1253 Sy1 10 19 32.8698662202 -03 20 14.806614355   13.1   14.784   ~ 32 0
27 IRAS 10295-1831 Sy1 10 31 57.3071260561 -18 46 33.363411263   11.4   11.7   ~ 43 0
28 2MASX J11094848-0830154 Sy1 11 09 48.4970518811 -08 30 15.048220269           ~ 12 0
29 ESO 438-9 Sy1 11 10 48.0029060684 -28 30 03.773668802   14.26 14.17 13.19   ~ 67 0
30 Mrk 1298 Sy1 11 29 16.7289412438 -04 24 07.245397091   14.97 14.61     ~ 169 1
31 NGC 4593 Sy1 12 39 39.4435521178 -05 20 39.035028119   13.95 13.15     ~ 948 0
32 IC 3834 Sy1 12 51 32.3732461804 -14 13 16.023264031   17.0       ~ 30 1
33 Mrk 231 Sy1 12 56 14.2340989340 +56 52 25.238555193   14.68 13.84     ~ 1777 3
34 2MASX J13130580-1107424 Sy1 13 13 05.7811787784 -11 07 42.367592509   15.48 15.15 13.4   ~ 104 0
35 MCG-02-35-001 Sy1 13 32 39.1126474949 -10 28 52.580429025   12.8 15.6 10.2   ~ 24 0
36 2MASX J13411287-1438407 Sy1 13 41 12.8835055963 -14 38 40.246508971   15.02 14.63 11.5   ~ 61 0
37 ESO 578-9 Sy1 13 56 36.7127510899 -19 31 44.864098009   15.25   14.46   ~ 36 0
38 2MASX J14200630-0923135 Sy1 14 20 06.2994915599 -09 23 13.075277403   15.6   15.1   ~ 13 0
39 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2679 4
40 6dFGS gJ213049.9-020814 AG? 21 30 49.9360176141 -02 08 14.541603384   17.46   16.33   ~ 8 0
41 ESO 344-16 Sy1 22 14 42.0134271932 -38 48 22.877654047   15.32 14.54 10.0   ~ 51 0
42 HE 2222-0026 Sy1 22 24 35.2932638449 -00 11 03.865278664   17.21 16.88     ~ 24 0
43 2MASX J22354193+0139333 Sy1 22 35 41.8969164044 +01 39 33.554050760           ~ 16 0
44 Mrk 926 Sy1 23 04 43.4773393553 -08 41 08.632325890   16.20 15.91 9.4   ~ 399 0

    Equat.    Gal    SGal    Ecl

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2020.07.05-10:43:25

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